One qubit modeling the universe

[R.P.F.]

I just had a weird thought.
One qubit is a 2-d complex vector space which is isomorphic to a 4-d real vector space. Why can't we model the 4-manifold of space-time universe using one qubit?

 

[I like Serena]

I think that is because we're still having great difficulty modelling even 1 regular bit in a qubit...

 

[R.P.F.]

I think that is because we're still having great difficulty modelling even 1 regular bit in a qubit...

 

[I like Serena]

lol!

 

[haael]

One qubit is a 2-d complex vector space which is isomorphic to a 4-d real vector space. Why can't we model the 4-manifold of space-time universe using one qubit?

A qubit state is not the space but a vector of that space. So you can model a universe with only one classical particle with it.